From Greek: para allelois beside one another. Lines are parallel if they lie in the same plane, and are the same distance apart over their entire length. Try this Drag any orange dot at the points P or Q. As the line PQ moves, the line RS will remain parallel to it. Parallel lines remain the same distance apart over their entire length.
It is important to know whether the cancer has got into the lymph glands because they are one of the main mechanisms by which the cancer can spread to other parts of the body. As long as the spread is just to the lymph glands near to the colon then this would indicate Stage 3 cancer.
1 Lymph Nodes (Lymph Glands): are found throughout the human body (behind breast tissue, arm tissue, leg tissue, etc.) and are linked together through lymphatic vessels. 2  Lymph nodes screen and/or remove foreign substances (for example, substances secreted from bacteria, called antigens). Lymph Nodes (Lymph Glands): are found throughout the human body (behind breast tissue, arm tissue, leg tissue, etc.) and are linked together through lymphatic vessels. 2  Lymph nodes screen and/or remove foreign substances (for example, substances secreted from bacteria, called antigens).